VTableBuilder.cpp File Reference

#include "clang/AST/VTableBuilder.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTDiagnostic.h"
#include "clang/AST/CXXInheritance.h"
#include "clang/AST/RecordLayout.h"
#include "clang/Basic/TargetInfo.h"
#include "llvm/ADT/SetOperations.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cstdio>

Go to the source code of this file.

Macros
#define	DUMP_OVERRIDERS   0

Functions
static VTableLayout::AddressPointsIndexMapTy	MakeAddressPointIndices (const VTableLayout::AddressPointsMapTy &addressPoints, unsigned numVTables)
static std::unique_ptr< VTableLayout >	CreateVTableLayout (const ItaniumVTableBuilder &Builder)
static void	GroupNewVirtualOverloads (const CXXRecordDecl *RD, SmallVector< const CXXMethodDecl *, 10 > &VirtualMethods)
static bool	isDirectVBase (const CXXRecordDecl *Base, const CXXRecordDecl *RD)
static void	PrintBasePath (const VPtrInfo::BasePath &Path, raw_ostream &Out)
static void	dumpMicrosoftThunkAdjustment (const ThunkInfo &TI, raw_ostream &Out, bool ContinueFirstLine)
static bool	setsIntersect (const llvm::SmallPtrSet< const CXXRecordDecl *, 4 > &A, ArrayRef< const CXXRecordDecl * > B)
static bool	rebucketPaths (VPtrInfoVector &Paths)
static bool	extendPath (VPtrInfo &P)
static void	findPathsToSubobject (ASTContext &Context, const ASTRecordLayout &MostDerivedLayout, const CXXRecordDecl *RD, CharUnits Offset, BaseSubobject IntroducingObject, FullPathTy &FullPath, std::list< FullPathTy > &Paths)
static void	removeRedundantPaths (std::list< FullPathTy > &FullPaths)
static CharUnits	getOffsetOfFullPath (ASTContext &Context, const CXXRecordDecl *RD, const FullPathTy &FullPath)
static const FullPathTy *	selectBestPath (ASTContext &Context, const CXXRecordDecl *RD, const VPtrInfo &Info, std::list< FullPathTy > &FullPaths)
static void	computeFullPathsForVFTables (ASTContext &Context, const CXXRecordDecl *RD, VPtrInfoVector &Paths)
static bool	vfptrIsEarlierInMDC (const ASTRecordLayout &Layout, const MethodVFTableLocation &LHS, const MethodVFTableLocation &RHS)

Macro Definition Documentation

DUMP_OVERRIDERS

#define DUMP_OVERRIDERS   0

Definition at line 29 of file VTableBuilder.cpp.

Function Documentation

computeFullPathsForVFTables()

void computeFullPathsForVFTables ( ASTContext & Context, const CXXRecordDecl * RD, VPtrInfoVector & Paths )

static

Definition at line 3664 of file VTableBuilder.cpp.

References findPathsToSubobject(), removeRedundantPaths(), selectBestPath(), and clang::CharUnits::Zero().

CreateVTableLayout()

std::unique_ptr< VTableLayout > CreateVTableLayout ( const ItaniumVTableBuilder & Builder )

static

Definition at line 2414 of file VTableBuilder.cpp.

Referenced by clang::ItaniumVTableContext::createConstructionVTableLayout().

dumpMicrosoftThunkAdjustment()

void dumpMicrosoftThunkAdjustment ( const ThunkInfo & TI, raw_ostream & Out, bool ContinueFirstLine )

static

Definition at line 3208 of file VTableBuilder.cpp.

References clang::QualType::getCanonicalType(), clang::FunctionDecl::getReturnType(), clang::ReturnAdjustment::isEmpty(), clang::ThisAdjustment::VirtualAdjustment::isEmpty(), clang::ThunkInfo::Method, clang::ReturnAdjustment::VirtualAdjustment::Microsoft, clang::ReturnAdjustment::NonVirtual, clang::ThunkInfo::Return, clang::T, clang::ThunkInfo::This, clang::ReturnAdjustment::VirtualAdjustment::VBIndex, clang::ReturnAdjustment::VirtualAdjustment::VBPtrOffset, clang::ReturnAdjustment::Virtual, and clang::ThisAdjustment::Virtual.

extendPath()

bool extendPath ( VPtrInfo & P )

static

Definition at line 3471 of file VTableBuilder.cpp.

References clang::VPtrInfo::MangledPath, and clang::VPtrInfo::NextBaseToMangle.

Referenced by rebucketPaths().

findPathsToSubobject()

void findPathsToSubobject ( ASTContext & Context, const ASTRecordLayout & MostDerivedLayout, const CXXRecordDecl * RD, CharUnits Offset, BaseSubobject IntroducingObject, FullPathTy & FullPath, std::list< FullPathTy > & Paths )

static

Definition at line 3521 of file VTableBuilder.cpp.

References clang::CXXRecordDecl::bases(), findPathsToSubobject(), clang::ASTRecordLayout::getBaseClassOffset(), and clang::ASTRecordLayout::getVBaseClassOffset().

Referenced by computeFullPathsForVFTables(), and findPathsToSubobject().

getOffsetOfFullPath()

CharUnits getOffsetOfFullPath ( ASTContext & Context, const CXXRecordDecl * RD, const FullPathTy & FullPath )

static

Definition at line 3562 of file VTableBuilder.cpp.

References clang::CXXRecordDecl::bases_begin(), clang::CXXRecordDecl::bases_end(), clang::CharUnits::fromQuantity(), clang::ASTRecordLayout::getBaseClassOffset(), clang::ASTRecordLayout::getVBaseClassOffset(), clang::CXXBaseSpecifier::isVirtual(), and clang::CharUnits::Zero().

Referenced by selectBestPath().

GroupNewVirtualOverloads()

void GroupNewVirtualOverloads ( const CXXRecordDecl * RD, SmallVector< const CXXMethodDecl *, 10 > & VirtualMethods )

static

Definition at line 3001 of file VTableBuilder.cpp.

References clang::DeclContext::decls(), clang::CXXMethodDecl::getCanonicalDecl(), and clang::VTableContextBase::hasVtableSlot().

isDirectVBase()

bool isDirectVBase ( const CXXRecordDecl * Base, const CXXRecordDecl * RD )

static

Definition at line 3033 of file VTableBuilder.cpp.

References clang::CXXRecordDecl::bases().

MakeAddressPointIndices()

VTableLayout::AddressPointsIndexMapTy MakeAddressPointIndices ( const VTableLayout::AddressPointsMapTy & addressPoints, unsigned numVTables )

static

Definition at line 2283 of file VTableBuilder.cpp.

Referenced by clang::VTableLayout::VTableLayout().

PrintBasePath()

void PrintBasePath ( const VPtrInfo::BasePath & Path, raw_ostream & Out )

static

Definition at line 3200 of file VTableBuilder.cpp.

rebucketPaths()

bool rebucketPaths ( VPtrInfoVector & Paths )

static

Definition at line 3480 of file VTableBuilder.cpp.

References extendPath(), and clang::VPtrInfo::MangledPath.

removeRedundantPaths()

void removeRedundantPaths ( std::list< FullPathTy > & FullPaths )

static

Definition at line 3547 of file VTableBuilder.cpp.

Referenced by computeFullPathsForVFTables().

selectBestPath()

const FullPathTy * selectBestPath ( ASTContext & Context, const CXXRecordDecl * RD, const VPtrInfo & Info, std::list< FullPathTy > & FullPaths )

static

Definition at line 3594 of file VTableBuilder.cpp.

References clang::BaseSubobject::getBase(), clang::CXXMethodDecl::getCanonicalDecl(), clang::Decl::getLocation(), getOffsetOfFullPath(), clang::CXXMethodDecl::getParent(), clang::VTableContextBase::hasVtableSlot(), clang::VPtrInfo::IntroducingObject, clang::CXXRecordDecl::methods(), clang::DiagnosticsEngine::Report(), and clang::CharUnits::Zero().

Referenced by computeFullPathsForVFTables().

setsIntersect()

bool setsIntersect ( const llvm::SmallPtrSet< const CXXRecordDecl *, 4 > & A, ArrayRef< const CXXRecordDecl * > B )

static

Definition at line 3362 of file VTableBuilder.cpp.

vfptrIsEarlierInMDC()

bool vfptrIsEarlierInMDC ( const ASTRecordLayout & Layout, const MethodVFTableLocation & LHS, const MethodVFTableLocation & RHS )

static

Definition at line 3686 of file VTableBuilder.cpp.

References clang::ASTRecordLayout::getVBaseClassOffset(), clang::MethodVFTableLocation::VBase, and clang::MethodVFTableLocation::VFPtrOffset.